Joseph Gulla

Joseph Gulla




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Recent Posts

  • A Comprehensive Approach to Application Management
    12/04/2017
  • Age of Networks and Network Management
    11/27/2017
  • Comprehensive Systems Management
    11/20/2017
  • IT Management Activities and Their Context
    11/13/2017
  • Design and Develop Large-Scale System Software
    11/06/2017
  • sig·nif·i·cance – Installation of Products, Enhancements and Fixes

    This week, I’m continuing the series on significance (the quality of being worthy of attention or importance). For this post, I want to focus on a remarkable z/OS utility called System Modification Program/Extended (SMP/E).

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    Posted: November 28, 2016 |

    sig·nif·i·cance – Workload Management

    This week, I am continuing this series on significance (the quality of being worthy of attention or importance). For this post, I want to focus on a component of z/OS called Workload Manager (WLM). It handles the varied and diverse work that runs in a z/OS system giving the individual jobs, started tasks and time sharing option (TSO) users the system priority desired by the business that’s running the software.

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    Posted: November 21, 2016 |

    sig·nif·i·cance – System Management Facility

    This week, I am continuing this series on significance (the quality of being worthy of attention or importance). For this post, I want to focus on a component of z/OS called SMF. As a new application developer, I had no exposure to SMF. It was something developers didn’t know about because we were focused on other things like using COBOL and VSAM to code a solution to the specs given to us by our analyst. Later, when I became a system programmer trainee, I became aware of the enormous significance of SMF.

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    Posted: November 14, 2016 |

    sig·nif·i·cance – CICS and IMS as Early Real-Time Middleware

    Last week, I wrote about how middleware came about because of the emergence of distributed computing systems. I wrote that these new systems created a need for certain types of software that had not existed before or existed mainly for internal use. Middleware software has roots in software that was developed for centralized computing for both batch and online processing. This week I focus on the real-time roots of modern middleware.   

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    Posted: November 07, 2016 |

    sig·nif·i·cance – JES as Early Batch Middleware

    It’s generally accepted that modern middleware came about because of the emergence of distributed computing systems. These new systems created a need for certain types of software that hadn’t existed before or existed mainly for internal use. This new software came about to support client-server computing. However, modern middleware software has firm roots in software that was developed for centralized computing. 

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    Posted: October 31, 2016 |

    sig·nif·i·cance – z/OS

    This week, I am continuing this series on significance (the quality of being worthy of attention or importance). For this post, I want to focus on z/OS, an OS that’s been used for more that 15 years and has it roots in predecessors from OS/390, MVS/ESA, MVS/SP, OS/VS 2, OS/VS1 and OS/360 (which first shipped in 1965). z/OS has been more than 50 years in the making with a huge investment of human computing resources and large and varied input from its users over the decades. 

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    Posted: October 24, 2016 |

    sig·nif·i·cance – Virtualization

    This week, I am continuing this series on significance (the quality of being worthy of attention or importance). For this post, I want to focus on virtualization.

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    Posted: October 17, 2016 |

    sig·nif·i·cance - COBOL

    This week, I am starting a new series on significance (the quality of being worthy of attention, importance). For the first in this new series, COBOL is my starting place.

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    Posted: October 10, 2016 |

    Internal Modernization of CICS and IMS TM

    This week, I’ll finish my exploration of IT modernization by writing about CICS and IMS Transaction Manager (TM). Both are powerful transaction environments with a long history of internal modernization. However, more than their history is their pursuit of powerful functionality, high performance and innovation. 

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    Posted: October 03, 2016 |

    Internal Modernization of DB2 and IMS DB

    This week, I’ll explore internal modernization by writing about change and growth that has happened to DB2 and IMS database (DB). When you read the different accounts of the history of these products, you can’t help but think of the number of individuals and teams involved and the dynamics and energy of their interactions. There are the development teams. They designed the initial functionality, then all the follow-on developments were taking place over decades while technology was constantly changing in and around them.

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    Posted: September 26, 2016 |

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